Buffer Seals

Molded in PTFE with a rubber energizer, this seal absorbs the shock of pressure spikes to protect the rod seal.

70A Durometer | Filled PTFE Buffer Material | 50 MM Nominal Inner Diameter | Buffer Seal

This U-cup style buffer ring offers an asymmetric sealing lip profile, chamfered sealing edges, and pressure relieving capabilities to prevent inner pressure entrapment when employed in a tandem sealing system. This rod buffer seal is designed to absorb impact pressure fluctuations under high-load conditions thus increasing the life of the primary seal.

Urethane Material | 1 1/4 in Nominal Inner Diameter | Buffer Seal

This U-cup style buffer ring offers an asymmetric sealing lip profile, chamfered sealing edges, and pressure relieving capabilities to prevent inner pressure entrapment when employed in a tandem sealing system. This rod buffer seal is designed to absorb impact pressure fluctuations under high-load conditions thus increasing the life of the primary seal.

Urethane Material | 1 3/8 in Nominal Inner Diameter | Buffer Seal

These lip-type buffer seals are designed for replacement in Caterpillar® cylinders. The hinged-lip design reduces friction, heat, and wear under low-pressure conditions and acts as a check valve allowing back-pressure relief. Seals for rod sizes 2-1/8” and under do not have a back-up ring.

Urethane Material | 3 1/4 in Nominal Inner Diameter | Buffer Seal

See Caterpillar® heading in kit catalog for more Caterpillar® replacement parts.

92A Durometer | Urethane Material | 1 7/8 in Nominal Inner Diameter | Buffer Seal

See Caterpillar® heading in kit catalog for more Caterpillar® replacement parts.

92A Durometer | Urethane Material | 2 3/4 in Nominal Inner Diameter | Buffer Seal

See Caterpillar® heading in kit catalog for more Caterpillar® replacement parts.

Bronze Filled PTFE Material | 3 1/2 in Nominal Inner Diameter | Buffer Seal

This U-cup style buffer ring offers an asymmetric sealing lip profile, chamfered sealing edges, and pressure relieving capabilities to prevent inner pressure entrapment when employed in a tandem sealing system. This rod buffer seal is designed to absorb impact pressure fluctuations under high-load conditions thus increasing the life of the primary seal.

Urethane Material | 5 1/2 in Nominal Inner Diameter | Buffer Seal

Rod Buffer Seals 8.5 X9.116x.247

Molded in PTFE with a rubber energizer, this seal absorbs the shock of pressure spikes to protect the rod seal.

70A Durometer | Filled PTFE Buffer Material | 25 MM Nominal Inner Diameter | Buffer Seal